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蜂鸣器工作原理

更新时间: 2021-05-01 12:37:04     

蜂鸣器工作原理:

1、蜂鸣器的发声原理由振动装置和谐振装置组成,而蜂鸣器又分为无源他激型与有源自激型。

2、无源他激型蜂鸣器的工作发声原理是:方波信号输入谐振装置转换为声音信号输出。

3、有源自激型蜂鸣器的工作发声原理是:直流电源输入经过振荡系统的放大取样电路在谐振装置作用下产生声音信号。

关键词: 工作 原理

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